Rim construction



Oct. 4, 1932. NELSON 1,880,974

HIM CONSTRUCTION Filed Oct. 29', 1928 2 Sheets-Shegt 1 ATTORN Y5 Oct. 4, 1932. E. A. NELSON RIM CONSTRUCTION Filed 001;. 29, 1928 2 Sheets-Sheet 2 INVENTOR EmzzflNc zsm ATTORN Y5 Patented 4,1932

J UNITED AT S" PATENT orrlcs EMIL A.NEI.SO1\T,-OF nnrrnorr, MICHIGAN 1 RIM consmwc'non rims of the type employed in connection with the wheels of motor vehicles and particularly to those types employing aremovablesplit 1; 5" flange ring, the principal obj ect-being'the proand which will besimple in design, economical to'manufacture, and eflicient in use. V

V The above being among the objects of the present invention, the same consists of certain features of construction and combinations of. parts to be hereinafter described withreferance t'othe accompanying drawings, and

med, having the above and other objects in view. I

In the accompanying drawings which illustrate suitable embodiments of the'present invention, in which like numerals refer tom like-parts throughout the several diflerent views Fig. 1 is a side View of a vehiclerim' provided with a split flange ring locked in place in accordance with the present invention.

v Fig. 2 is an enlarged sectional view taken on the line 22 of Fig. 1. j

, Fig. 3 is an enlarged fragmentaryside view of the rim shown in Fig. 1 at the point where .i the locking member coy-operates therewith.

the relation of a tire thereto.

Fig.5 is a fragmentary edge view of the split flange ring at the'point of split, showing the manner 1-111 which it is cut away to co-operate with the locking member.

Fig. 6 isa fragmentary plan view of the flanged head portion, for engagement by a rim and cooperating split flange ring showing the manner in which the locking member "co-operates with the split flange ring.

. This invention relates to a construction for A further object is to provide a new and force acting on the flange rings is of minor Fig. 4 is an enlarged sectional view taken .as on the line 41-4 of Fig. 1 and illustrating hpplicati'on filed October 29,1923. Serial No. 315,848.

It is a known fact in connection with demountable rims for pneumatic tires employ mg the conventional type of split flange rlngs, and particularly where such rims are employed with the large size of tires and 55 high pressures generally met with in bus or truck service, that the split flange rings are sometimes forced ofl of the rim during service and while the tire remains inflated. The

disastrous results thatare liable to attend 60 the displacement of the flange ring during service is readily recognized by those skilled in the'art. g In my application for Letters Patent 0 the United States for improvements in wheel and rim construction, filed July 12th, 1928,

and serially numbered 292,281, I described a novel type of flange ring construction designed to minimize inadvertent displacement of theflange ring on the rim during service, and I also provided a novel form of locking means for such type of flange rings. This locking means is also adapted to the conventionaltypes of construction.

, The present invention relates to another form of locking means for preventing displacement of the split flange ringon the rim during-service; In the following description and in the accompanying drawings, a form of the present invention is disclosed which is particularly applicable to-the larger and heavier types of flange ring and rim constructions such as are used in connection with trucks and busses where the centrifugal importance. Typically, each rim may. include a lateral trough whose parallel flanges radially terminate in substantially parallel and concentric but axially inner and outer cylindrical-surfaces, spaced apart by the recess of said trough, for engagement by like surfaces upon a split ring,-the mentioned outer cylindrical surface being provided by a flange which provides also a substantially flat abutment surface perpendicular to the axis of the rim; and the co operating split ring may include not only a tire and in axially slidable engagement with of the ends of said ring possible only upon the completion of 1 an axially inward movement also a foot portion'in the form of angle element shaped to engage both of the mentioned surfaces provided by the mentioned flange. This flange will be seen to constitute an outer wall of the mentioned trough and,

in all cases, be cut away to provide reduced,

end [portions adjacent the split in said ring; or flange may in all cases be provided, opposite said cutaway'end portion, with means,

such as an angle-section keeper, including 'a substantially cylindrical flange adapted normally'to. overlie the cylindrical surface of said shank','th'ereby rendering a separation thereof, and providing oppositely facing surfaces perpendicular to. the rim axis and serving as istopsengageable by the like surfaces which. terminate isaidireduced end por- Fi'gs: 1 to '6 inclusive refer to ,a'type-of construction. such asv is particularly applicable forus'e in'connection with trucks. andbusses, althoughfit is tobe understoodlthat, it is not. limited 1 to such vehicles. Referring to Figs.

1 and2 Ishow arimof the demountable type havingabaseand a side flange '11 which I, may be permanently 'iattached ias" shown, or I maybe removable as in the case'ot the con: 1 j ventional B- types: of rims:

used-on a relatively large scale. The opposite side, of the rim is formed inaecordanee with my previous T patent application above re ,ferred to, and as in that'construction',cis pro vided with an-enlarged-annularedge portion 12 'internally'recessed as at 13. The split flange ring employed in the present case is V 6 inclusive.

ingeneral the same asthat shown and describedin my previous patent application referredito, and comprises a split ring formed. to provide aninn'er' upwardly and outwardly extending flangefportion 1' 1 and a bas e p'ortion 15 whichbridges the recess 13 "and is provided with a? relatively shallow radially inwardly e xtending shoulder 16; which is adaptedto bear: against .the outer side Wall ofthe recess 13. Inth-is' construction the re-' sultantline of pressure of the tire 17 acting ontheflange ring is transmittedffrom' the flange 14 through the base 15' between the inner and outer edgesthereof'so as to eliminate the'tendency; of the tire pressure to The locking means for the present c and the mentioned outer trough wallwardly extending interlocking flange porto the accompanying.drawings,

3f, etude;

commercially twist the -flange-ring=out of the recess 13. l'Thev flange ring is split as at 18. f

I the flangeiring in ase is best shown in Figs. 8 .to

As indicated in these; figures, a locking member indicated generally asat 7 1-9 is welded or otherwise securedto the m 5,; per face of that portion of the enlargedQannular portion. 12 of the rim positionedqouti wardly of the recess 13. The member'19 is preferably equally disposed circumferentially of the rimon either side of the opening 20 in the base 10 through which-thevalve' stem 21 is adapted to; project. The mem' ber' 19 extends radially :outvvardly;0f the plane of the :base '10 and. preterablyx projects axially inwardly of the outer wall-of the re-- ce ss l3 aslight distance as at 22 in Fig. 4. The member 19 is also provided with an intion The flange ring itself on either side of the line-of spli t -l8;has the base portion 15;

ing' to thecross sectional thickness .or width of the memberil9 belowtheflange 23. Thev lower faceofthe flange 23is=positioned above the outer face of the base 10a suflicie'nt distance so as to permit" the co-operating portion of the ba'se: portion 15in the neighborhood of the ;cut: away 'portiona24 to fit thereunder.

When assembled, 1 the flange 'ringiis positioned on the rim asindicated' in Fig.2 with gthe'cut out portions 24:. flttedparoundi the member 19, and with. the portion 23', overlying the lineof split of the co-operatingportion 15 of the flange ring as; indicatedin Figs.

. V v V Itwill be apparentfthatwhen the tire 17 is inflated the pressure of thetire acting on the free ends ofthesplit flange ringwill main-- tain theend' 'si-off-th'e flange ring underthe overhanging' flanfge- 23 so that it will. be possible to spring the free; ends of the split flange ring; radially outwardly of the recess; I

. 13 untilthe flangering has been moved inwardly of the rim a sufficient-distance to bring the free'ends thereof out from under the flange portion 23, and it-will also;be

evidentf that as long asthe tire 17 re- W mainsinflated the; pressure of the tire acting on the flange ringwill 'eflectually prevent fsuch inwardidisplacement --o-f, the

be 7 necessary; in: order to remove the split flange ring-, ;to.- then'force. one ofthe free. ends of the split flange ring axially inwardly until, it clears the overhanging flange; portion -23 of the. locking-member 19,. after which it may, be

sprung radially outwardly andthereupon'be moved'axi'allyoutwardly: of the grooved?) to enable thesplit flange ringto; be removed free ends of the flange ring; 1 It will therefore first. deflate the tire: 17 and I i It will also be apparentthatinasmuch as the baseportionrlf) of the split-flange ring is cut out at 2 1. to fit around'the member 19, the;

end walls ofthe cut; away portion 24, in co operating-with the member '19; will prevent relative circumferential I mofvement 'ofthe split'flangeringlwith respect to therim, and willv therefore prevent the free ends'of the split flange ring i from' moving. circumfei entially out of proper alignment with the member 19. The member 19 will of course be positioned axially'of the rim in alignment with the opening for the valve stem 21, so that upon removal of the split flange ring thetire17 may first be swung off of the rim opposite the opening 20 so as to permit the tire in the neighborhood of the opening 20 to be thereafter lifted up over the member 19 in removing the tire from the rim, for "if the 'opening 20 and the member '19 were not in alignment they otherwise might co-operate to prevent the tire from being removed from the rim. 1

It will be obvious from the above that the lockingmeans which I have herein provided offers a simple and efl'ective method of look} ing the split flange ring against displacement on a tire rim, and that such constructionis departing from the spirit or substance-of the mensurate broad invention, the scope ofwhich is comwith the appended claims. I claimi V 1. A vehicle wheel assembly comprising a rim base portion, a gutter formed about the outer peripheryof said rim base portion adjacent to one edge thereof, a segment of the split ring having a tire bead retaining flange and an'approximately cylindrical ring base portion completely bridging the gutter and having a radially inwardly projecting portion engaging the outer wall of the gutter to prevent axially outward displacement of the ring but being so proportioned as to permit a considerable degree of movement in the axially inward direction, the marginal portions of the ring base portion being adapted to slide upon the edges of the gutter, the axially outer edges of the ends of the ring base portion being notched to engage the ends of the hook-like portion to prevent circumferential creeping of the ring,

the ring base portion further having portions adapted to underlie the hook portion normally toprevent radial displacement of the ring while a tire upon the rim is inflated, said rim base portion having a valve hole formed therein at a point substantially adjacent to the split in said ring.

' I EMIL A. NELSON.

axially outer wall of the gutter being shaped into a radially outwardly and axially in- Wardly directed hook-like portion, a transsplit ring having a tire bead retaining flange and an approximately cylindrical ring base portion completely bridgingthe gutter and having a radially inwardly projecting portion engaging the outer'wall of the gutter to prevent axially outward displacement of the ring but being so proportioned as to permit a considerable degree of movement in the axially inward direction, the marginal portions of the ringbase portion being adapted to slide upon the rim base portion, the axially,

' I outer edge of the ends of the ring base portion being notched to engage theends of the hook-like portion tojprevent circumferential creeping of the ring, the ring base portion further having portionsadapted to underlie the hook portion normally to prevent radial displacement of the ring while a tire upon the rim is inflated.

' 2. A vehicle wheel assembly comprising a rim base portion, a gutter formed about the outer periphery of said rim base portion adj a- I a cent to one edge thereof, a segment of the axlally outer wall of the gutter being shaped into a radially outwardly and axially inwardly directed hook-like portion, a trans- 

